New diesel and petrol cars and vans will be banned from 2040 as part of efforts to tackle air pollution, Environment Secretary Michael Gove has said.

He also pledged to work with local authorities developing "value for money and appropriately targeted" diesel scrappage schemes.

But the Cabinet minister warned authorities he does not believe it is "necessary" to bring in charges to prevent vehicles entering city centres, adding the Government will work with them to determine the approach.